You nailed a pretty good question out here Jkarate. However I also don't know about this thing but I think the other members would be knowing and if still not then let's Google. Whosoever will find first will post out here about this thing.

I think as of now there's no such Mario fan who made a game for playing. It may also be possible that may be in this community some member would be designing the game worth for playing. I am quite sure that someone would really come up with a great game.

I also like your link which shared out over here, but especially Mario Challenge game. This one will bring a lot of entertainment to it’s players as is one of the best looking games featuring Mario. This game's graphics and background sound are great. All characters are also very impressive.